解决问题的方法：一种叠层包转材料由热塑性材料最外层、纸基材料层、导电阻挡层和热封最内层构成。

A laminated packaging material is composed of a thermoplastic material outermost layer, a paper base material layer, a conductive barrier layer and a heat sealing innermost layer.

youdao

但是“封转开”是否就是封闭式基金到期的最佳选择呢?。

But whether closed-to-opened is the best choice which the closed-end fund expired?

youdao

如果你想摸清她的感受，她已托我转一封信给你看。

If you want to get a line on how she feels, she gave me a letter to give you.

youdao